I was torn on which of these two upcoming MMO games to play until I saw some of the beta ingame footage for the two games. That made my choice alot easier as it seems that Mortal Online looks alot like Oblivion with MMO elements added. Tera is a game made by some of the developers who worked on Lineage 2 that left the company to form their own independent company. Check out trailers for both Tera Online : Prolog: Short Intro & Art: Large Battle: Mortal Online (Cinematic Trailer, followed by beta footage, then art):
Yeah I thought it was ganna have awesome graphics like in the cinematic trailers it looks nothing compared to the movies